[Inkscape-devel] btool -j switch?

on Mingw when I build btool like:

g++ buildtool.cpp -o btool -fopenmp

and then run it like

btool -j 2

or

btool -j

on a dual core machine Windows Task Manager shows the idle process at 50% and the various compiler tools at up to 50%. That is, it is not using both cores.

Is there some other trick that is needed for a threaded compile?

Thanks,

David Mathog mathog@...1176... Manager, Sequence Analysis Facility, Biology Division, Caltech